Multi-stage linkage flue gas baffle door device

Abstract

The invention relates to a multistage linkage flue gas baffle door device applied to the technical field of flue gas baffle doors, the multistage linkage flue gas baffle door device comprises a baffle door assembly, a control assembly and an intelligent controller, the baffle door assembly comprises a baffle door I and a baffle door II, the control assembly comprises a driver assembly and a plurality of gas feeders, and a buzzer is arranged on the intelligent controller. When the flue gas baffle door is used, the baffle plate expands, the control module controls the driver assembly to drive the baffle door I and the baffle door II to horizontally move, if the detection module does not receive an in-place signal of the proximity switch for a long time, the baffle door is judged to be deformed and stuck, and the control module controls the gas supply device to exhaust gas from a cavity in the baffle door. If the detection module still does not receive the in-place signal for a long time after the air exhaust control is started, it is judged that the baffle door is deformed and stuck, the baffle door is reset, control over the abnormal baffle door is abandoned, the single baffle door is controlled to be opened and closed, and meanwhile the alarm module controls the buzzer to give an alarm to remind that the device is abnormal.

Description

Technical Field

[0001] The present invention relates to a damper door device, in particular to a multi-stage linkage smoke damper door device applied in the technical field of smoke damper doors. Background Art

[0002] As the country's environmental protection requirements continue to increase, in industries that can generate a large amount of flue gas, such as thermal heating, there are also higher requirements for flue gas emission indicators. Usually, a flue gas damper door is installed in the flue of the boiler system to shut off, open, divert and adjust the flue gas. Among them, if the flue gas contains more harmful components, the sealing performance requirements of the sealing system will be more stringent. The leakage problem is mainly due to the different manufacturing standards of the damper door, insufficient sealing technology, poor high temperature and corrosion resistance, and easy deformation in high temperature and temperature difference environments. Therefore, how to efficiently solve this problem has become a top priority.

[0003] The invention patent with publication number CN113847465A discloses a new type of zero-leakage smoke damper isolation door, including a damper frame, blades installed on the inner side of the damper frame, and a pneumatic component arranged in the middle of the damper frame. The pneumatic component is used to drive the opening and closing of the blades and adopts a single-blade design.

[0004] When the above method is implemented in the process of exhaust gas desulfurization and purification, the baffle is very likely to expand, causing deformation and jamming, resulting in difficulty in opening and closing or even sealing failure, making the equipment unable to operate normally. Secondly, once the single-side door design fails during use, the machine must be shut down, which has low efficiency and high maintenance costs. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that during use, the baffle is very likely to expand, causing deformation and jamming, resulting in difficulty in opening and closing and even sealing failure, making the equipment unable to operate normally. Secondly, once the single-side door design fails during use, the machine must be shut down, resulting in low efficiency and high maintenance costs.

[0006] In order to solve the above problems, the present invention provides a multi-stage linkage smoke damper door device, including a damper door assembly, a control assembly and an intelligent controller. The damper door assembly includes a damper door 1 and a damper door 2. The damper door 1 is provided with a rubber core convex sleeve, and the damper door 2 is provided with a rubber core concave sleeve matched with the rubber core convex sleeve. The damper door 1 and the damper door 2 are both provided with a plurality of cavities, and the rubber core convex sleeve and the rubber core concave sleeve are hollow cavity structures. The rubber core convex sleeve, the rubber core concave sleeve and the cavity are all connected with air pipes, and the inner cavity of the rubber core concave sleeve is provided with a locking button;

[0007] The control assembly includes a driver assembly and a plurality of air suppliers, the driver assembly is fixedly connected to the baffle door assembly through a driving rod, the driver assembly includes a proximity switch matched with the driving rod, and the air supplier is connected to the air pipe through an air supply pipe;

[0008] A buzzer is provided on the intelligent controller, and a control module, a detection module and an alarm module are provided inside the intelligent controller. The control module is electrically connected to the driver assembly, the air supply device and the detection module respectively, the detection module is electrically connected to the locking button, the proximity switch and the alarm module respectively, and the alarm module is electrically connected to the buzzer.

[0009] In the above-mentioned multi-stage linkage smoke damper door device, when the smoke damper door is in use, the damper expands, and the proximity switch can detect and determine in real time whether the damper door is deformed and stuck. The control module controls the air supply device to evacuate the cavity inside the damper door. If no signal is received after the exhaust control is completed, it can be determined that the damper door is completely deformed and stuck, and the control is reset and the abnormal operation of the damper door is abandoned. When the device fails, the alarm module can control the buzzer to alarm to remind the device of abnormality. When the damper door is closed, the locking button sends a signal to control the air supply device to inflate the rubber core convex sleeve and the rubber core concave sleeve to achieve the effect of reinforced locking.

[0010] As a further improvement of the present application, the drive assembly includes a drive housing, a drive motor and a drive gear. A mounting plate is fixed in the drive housing, the drive motor is arranged on the mounting plate, the output end of the drive motor is fixedly connected to the drive gear, and the control module is electrically connected to the drive motor.

[0011] As a further improvement of the present application, a buffer sleeve is provided on the driver housing, the drive rod passes through the driver housing and is slidably connected with the buffer sleeve, and the drive rod is provided with a rack that matches the drive gear.

[0012] As a further improvement of the present application, a solenoid valve is provided at the connection between each cavity and the air pipe, the baffle door assembly and the control assembly are fixed by the baffle door device housing, a position detector is provided on the driver housing, and a distance sensor matching the position detector is provided on the side of the baffle door assembly close to the driving rod, the control module is electrically connected to the solenoid valve, and the detection module is electrically connected to the position detector.

[0013] As another improvement of the present application, a calibration assembly is fixed at the lower part of each air supplier, and the calibration assembly includes a calibrator housing and a calibration pressure plate.

[0014] As another improved supplement of the present application, the calibration pressure plate is in an I-shaped shape, the top of the calibration pressure plate is inserted and connected with the lower part of the calibrator shell, the top of the calibrator shell is connected to the air supply through ventilation pipe 1, and the bottom side wall of the calibrator shell is connected to the air supply through ventilation pipe 2.

[0015] As another improved supplement of the present application, a rectangular opening is provided on one side of the baffle door device housing, and the air supply pipe passes through the rectangular opening and is connected to the baffle door assembly.

[0016] As another improvement of the present application, a circle of protective rods is provided on the shell of the baffle door device, the rubber core convex sleeve and the rubber core concave sleeve are both made of highly heat-resistant rubber material, and the baffle door 1 and the baffle door 2 are both made of high-temperature and high-hardness elastomer material.

[0017] To sum up, when the smoke damper door is in use, the damper expands, and the control module controls the driver assembly to drive damper door 1 and damper door 2 to move horizontally. The drive rod is connected to the damper door assembly, and the proximity switch matched with the drive rod detects whether the damper door is in place in real time. If the detection module does not receive the in-place signal of the proximity switch for a long time, it is judged that the damper door is deformed and stuck, and the control module controls the air supply device to exhaust the cavity in the damper door, so that the damper door shrinks and alleviates the stuck state. If the detection module still does not receive the in-place signal for a long time after the exhaust control is turned on, it is judged that the damper door is deformed and stuck, and the control module resets and gives up the control of the damper door that still has an abnormality. The control module controls the single-piece damper door that has no abnormality to open and close, and the alarm module controls the buzzer to alarm to remind the device of an abnormality. When damper door 1 and damper door 2 are closed, the locking button set in the inner cavity of the rubber core concave sleeve sends a signal, and the control module controls the air supply device to inflate the rubber core convex sleeve and the rubber core concave sleeve to lock them, thereby improving the stability of the damper door and preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the smoke damper door device of the first and second embodiments of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the driver assembly of the first and second embodiments of the present application;

[0020] Figure 3 It is a side sectional view of the baffle door assembly of the first and second embodiments of the present application;

[0021] Figure 4 This is a diagram of the repair process when the baffle door assembly is deformed and stuck in the first and second embodiments of the present application;

[0022] Figure 5 A schematic diagram of the positions of the position detector and the distance sensor according to the first and second embodiments of the present application;

[0023] Figure 6 This is a control flow chart of the intelligent controller of the first embodiment of the present application;

[0024] Figure 7 This is a schematic diagram of the calibration structure of the calibrator according to the first and second embodiments of the present application;

[0025] Figure 8 A side cross-sectional view of the calibrator according to the first and second embodiments of the present application;

[0026] Fig. 9 This is a control flow chart of the intelligent controller of the second embodiment of the present application;

[0027] Fig.10 This is a distribution diagram of the functions of the smoke damper door device of the first and second embodiments of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Baffle door assembly; 2. Control assembly; 3. Intelligent controller; 4. Baffle door device housing; 11. Baffle door one; 12. Baffle door two; 21. Driver assembly; 22. Air supply device; 23. Drive rod; 101. Rubber core convex sleeve; 102. Rubber core concave sleeve; 103. Cavity; 104. Air pipe; 105. Locking button; 201. Proximity switch; 202. Air supply pipe; 203. Driver housing; 204. Drive motor; 205. Drive gear; 206. Mounting plate; 207. Buffer sleeve; 208. Calibrator housing; 209. Calibration plate; 210. Ventilation pipe one; 211. Ventilation pipe two; 301. Buzzer; 401. Position detector; 402. Distance sensor; 403. Protective rod. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-Figure 6A multi-stage linkage smoke damper door device is shown, comprising a damper door assembly 1, a control assembly 2 and an intelligent controller 3. The damper door assembly 1 comprises a damper door 11 and a damper door 12. The damper door 11 is provided with a rubber core convex sleeve 101, and the damper door 12 is provided with a rubber core concave sleeve 102 matched with the rubber core convex sleeve 101. The mortise and tenon structure formed by the rubber core convex sleeve 101 and the rubber core concave sleeve 102 when the damper door 11 and the damper door 12 are closed can effectively lock the damper door, and it is not easy to leak. In addition, when two damper doors are provided, the single damper door can be controlled when one damper door fails. The door is locked, a plurality of cavities 103 are arranged in the baffle door 11 and the baffle door 2 12, the rubber core convex sleeve 101 and the rubber core concave sleeve 102 are in a hollow cavity structure, and the rubber core convex sleeve 101, the rubber core concave sleeve 102 and the cavity 103 are connected with an air pipe 104, and air is inflated and exhausted inwardly through the air pipe 104 to cope with different situations, and the inner cavity of the rubber core concave sleeve 102 is provided with a locking button 105. When the locking button 105 is squeezed and sends a signal to the detection module, the air pipe 104 inflates the rubber core convex sleeve 101 and the rubber core concave sleeve 102 to achieve a locking effect, making the structure more stable;

[0033] The control assembly 2 includes a driver assembly 21 and a plurality of air supply devices 22. The driver assembly 21 is fixedly connected to the baffle door assembly 1 through a driving rod 23. The driver assembly 21 includes a proximity switch 201 that cooperates with the driving rod 23. When the proximity switch 201 is squeezed, an opening position signal is sent to the detection module to control the horizontal movement distance of the baffle door. The air supply device 22 is connected to the air pipe 104 through an air supply pipe 202.

[0034] A buzzer 301 is provided on the intelligent controller 3, which alarms when a failure occurs in the device to remind the device of abnormality. A control module, a detection module and an alarm module are provided in the intelligent controller 3. The control module is electrically connected to the driver assembly 21, the air supply device 22 and the detection module respectively. The control module is used to control the opening and closing and locking of the baffle door. The detection module is electrically connected to the locking button 105, the proximity switch 201 and the alarm module respectively. The detection module is used to detect the movement state of the baffle door. The alarm module is electrically connected to the buzzer 301. The alarm module is used to alarm when a failure occurs in the device.

[0035] It can be seen that the flue gas damper door used in the desulfurization and purification process of exhaust gas is prone to malfunction during use. The drive rod 23 is connected to the damper door assembly 21. The control module controls the driver assembly 1 to drive the drive rod 23 to drive the damper door 11 and the damper door 2 12 to move horizontally. The proximity switch 201 matched with the drive rod 23 monitors in real time whether the damper door is in place. If the detection module does not receive the in-place signal sent by the proximity switch 201 for a long time, it is determined that the damper door is deformed and stuck. The control module controls the air supply device 22 to exhaust air into the air pipe 104 through the air supply pipe 202, so that the gas set in the damper door cavity 103 is extracted, and the surface of the damper door shrinks, which preliminarily alleviates the stuck state of the damper door. If the detection module still does not receive the in-place signal sent by the proximity switch 201 for a long time after the exhaust control is turned on, If a signal is received, it is determined that the baffle door is completely deformed and stuck, and the control module controls the driver assembly 21 to reset the deformed baffle door and give up control. The control module controls the single-piece baffle door that has not experienced any abnormality to open and close, so that the device can still operate, thereby improving efficiency and reducing costs. At the same time, the mortise and tenon structure formed by the rubber core convex sleeve 101 and the rubber core concave sleeve 102 arranged on the baffle door 11 and the baffle door 2 12 can effectively lock the baffle door. When the baffle door is closed, the locking button 105 is squeezed and sends a locking signal to the detection module. The control module controls the air supply device 22 to fill the inner cavity of the rubber core convex sleeve 101 and the rubber core concave sleeve 102 with gas to reinforce the locking, so that the device is not prone to leakage and improves safety. A buzzer 301 is arranged on the intelligent controller 3 to alarm when the device sends a fault, reminding the device to send an abnormality.

[0036] See also Figure 2 and Figure 6 The driver assembly 21 includes a driver housing 203, a driving motor 204 and a driving gear 205. A mounting plate 206 is fixed in the driver housing 203. The driving motor 204 is arranged on the mounting plate 206 so that the driving motor 204 is fixed in the driver housing 203. The output end of the driving motor 204 is fixedly connected to the driving gear 205. The control module is electrically connected to the driving motor 204. A buffer sleeve 207 is arranged on the driver housing 203. The driving rod 23 penetrates the driver housing 203 and is slidably plugged into the buffer sleeve 207 to prevent the driving rod 23 from shaking so as to achieve a fixing effect. A rack matched with the driving gear 205 is arranged on the driving rod 23 to control the driving motor 204 to drive the driving gear 205 to rotate. At the same time, the rack arranged on the driving rod 23 is driven and controlled by the driving gear 205 so that the driving rod 23 moves horizontally in the driver housing 203.

[0037] See also Figure 3-Figure 6A solenoid valve is provided at the connection between each cavity 103 and the air pipe 104. The baffle door assembly 1 and the control assembly 2 are fixed by the baffle door device housing 4. A position detector 401 is provided on the driver housing 203. A distance sensor 402 that cooperates with the position detector 401 is provided on the side of the baffle door assembly 1 close to the driving rod 23. The position detector 401 monitors the position of the distance sensor 402 in real time and sends a signal to the detection module. The control module is electrically connected to the solenoid valve, and the detection module is electrically connected to the position detector 401.

[0038] It can be seen that the ingenious structural design of the present invention lies in that the arrangement of the two baffle doors enables the device to still operate when one of the baffle doors fails during the desulfurization and purification process of the exhaust gas, thereby improving efficiency. The mortise and tenon structure formed by the rubber core convex sleeve 101 and the rubber core concave sleeve 102 can effectively lock the baffle door. The locking button 105 is squeezed when the baffle door is closed and sends a locking signal to the detection module. The air supply device 22 fills the inner cavity of the rubber core convex sleeve 101 and the rubber core concave sleeve 102 with gas to reinforce the locking, making the device less likely to leak and improving safety. The drive rod 23 passes through the driver housing 203 and is slidably connected with the buffer sleeve 207 to prevent the drive rod 23 from shaking to achieve While fixing, the driving motor 204 stably controls the horizontal movement of the driving rod 23. The proximity switch 201 matched with the driving rod 23 monitors in real time whether the baffle door is in place, and is used to control the air supply device 22 to fill and exhaust the air in the air pipe 104 to relieve the stuck state of the baffle door. The position detector 401 monitors the position of the distance sensor 402 in real time and sends a signal to the detection module. The detection module analyzes the stuck position and controls the solenoid valve set at the connection between the cavity 103 and the air pipe 104 at the stuck position to open, perform air extraction control, and accurately control the contraction control of the baffle door to prevent gas leakage. The buzzer 301 sounds an alarm when the device sends a fault state to remind the device of the fault state.

[0039] The second implementation method:

[0040] Figure 7-Figure 9 A multi-stage linkage smoke damper door device is shown. Different from the first embodiment, a calibration component is fixed to the lower part of each air supply 22, and the calibration component includes a calibrator shell 208 and a calibration pressure plate 209. The calibration pressure plate 209 is in an I-shaped shape, and the top of the calibration pressure plate 209 is inserted through the lower part of the calibrator shell 208. The damper door is calibrated to restore to a normal state through the calibration pressure plate 209. The top of the calibrator shell 208 is connected to the air supply 22 through the ventilation pipe 1 210, and the bottom side wall of the calibrator shell 208 is connected to the air supply 22 through the ventilation pipe 211. The vertical movement of the calibration pressure plate 209 is controlled by inflating the ventilation pipe 1 210 and the ventilation pipe 2 211 to achieve the effect of squeezing the damper door.

[0041] See also Figure 1A rectangular opening is provided on one side of the baffle door device shell 4, and the air supply pipe 202 passes through the rectangular opening and is connected to the baffle door assembly 1, so that the air supply pipe 202 moves with the baffle door in the rectangular opening, and is not easily displaced and damaged. A circle of protective rods 403 is provided on the baffle door device shell 4 to serve as a protective device. The rubber core convex sleeve 101 and the rubber core concave sleeve 102 are both made of highly heat-resistant rubber materials to make the locking structure more stable and improve the stability of the device. The baffle door 1 11 and the baffle door 2 12 are both made of high-temperature and high-hardness elastomer materials to improve the elastic effect to achieve a strong and rapid plastic effect.

[0042] See also Fig.10 The flue gas damper door device designed above is divided into original flue gas damper door, clean flue gas damper door and side door damper door. The original flue gas damper door, clean flue gas damper door and side door damper door all use the above-mentioned structure. During the desulfurization and purification operation of the exhaust gas, the original flue gas damper door opens to input gas for purification, and the clean flue gas damper door opens after a period of time to discharge the purified gas. When the device operates abnormally or the equipment is maintained, the control module automatically closes the original flue gas damper door and the clean flue gas damper door, and the bypass damper door opens synchronously to protect the gas from circulating and purifying in the purification equipment to prevent leakage and pollution.

[0043] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A multi-stage linkage smoke damper door device, characterized in that: It comprises a baffle door component (1), a control component (2) and an intelligent controller (3); The baffle door assembly (1) comprises a baffle door 1 (11) and a baffle door 2 (12); the baffle door 1 (11) is provided with a rubber core convex sleeve (101); the baffle door 2 (12) is provided with a rubber core concave sleeve (102) matched with the rubber core convex sleeve (101); a plurality of cavities (103) are provided in the baffle door 1 (11) and the baffle door 2 (12); the rubber core convex sleeve (101) and the rubber core concave sleeve (102) are hollow cavity structures; the rubber core convex sleeve (101), the rubber core concave sleeve (102) and the cavity (103) are all connected with an air pipe (104); the inner cavity of the rubber core concave sleeve (102) is provided with a locking button (105); The control assembly (2) comprises a driver assembly (21) and a plurality of air suppliers (22); the driver assembly (21) is fixedly connected to the baffle door assembly (1) via a driving rod (23); the driver assembly (21) comprises a proximity switch (201) matched with the driving rod (23); and the air supplier (22) is connected to the air pipe (104) via an air supply pipe (202); The intelligent controller (3) is provided with a buzzer (301), and the intelligent controller (3) is provided with a control module, a detection module and an alarm module, the control module is electrically connected to the driver assembly (21), the air supply device (22) and the detection module respectively, the detection module is electrically connected to the locking button (105), the proximity switch (201) and the alarm module respectively, and the alarm module is electrically connected to the buzzer (301).

2. A multi-stage linkage smoke damper door device according to claim 1, characterized in that: The driver assembly (21) comprises a driver housing (203), a driving motor (204) and a driving gear (205); a mounting plate (206) is fixed inside the driver housing (203); the driving motor (204) is arranged on the mounting plate (206); an output end of the driving motor (204) is fixedly connected to the driving gear (205); and the control module is electrically connected to the driving motor (204).

3. A multi-stage linkage smoke damper door device according to claim 2, characterized in that: The driver housing (203) is provided with a buffer shaft sleeve (207), the drive rod (23) penetrates the driver housing (203) and is slidably plugged into the buffer shaft sleeve (207), and the drive rod (23) is provided with a rack matched with the drive gear (205).

4. The multi-stage linkage smoke damper door device according to claim 3, characterized in that: A solenoid valve is provided at the connection between each cavity (103) and the air pipe (104); the baffle door assembly (1) and the control assembly (2) are fixed via a baffle door device housing (4); a position detector (401) is provided on the driver housing (203); a distance sensor (402) matching the position detector (401) is provided on the side of the baffle door assembly (1) close to the drive rod (23); the control module is electrically connected to the solenoid valve; and the detection module is electrically connected to the position detector (401).

5. The multi-stage linkage smoke damper door device according to claim 1, characterized in that: A calibration component is fixed at the lower part of each of the air suppliers (22), and the calibration component comprises a calibrator housing (208) and a calibration pressing plate (209).

6. The multi-stage linkage smoke damper door device according to claim 5, characterized in that: The calibration pressure plate (209) is in an I-shaped shape, and the top of the calibration pressure plate (209) is inserted into the bottom of the calibrator shell (208), the top of the calibrator shell (208) is connected to the air supply (22) through the ventilation pipe (210), and the bottom side wall of the calibrator shell (208) is connected to the air supply (22) through the ventilation pipe (211).

7. The multi-stage linkage smoke damper door device according to claim 4, characterized in that: A rectangular opening is provided on one side of the baffle door device housing (4), and the air supply pipe (202) passes through the rectangular opening and is connected to the baffle door assembly (1).

8. The multi-stage linkage smoke damper door device according to claim 7, characterized in that: A circle of protective rods (403) is arranged on the baffle door device housing (4), the rubber core convex sleeve (101) and the rubber core concave sleeve (102) are both made of heat-resistant rubber material, and the baffle door 1 (11) and the baffle door 2 (12) are both made of high-temperature-resistant and high-hardness elastic material.

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